Diamine oxidase from porcine kidney is a homodimer consisting of 2 equal subunits with a molecular weight of 87 kDa each. Each subunit contains one molecule of pyridoxal phosphate and one atom of copper. https://www.creative-enzymes.com/similar/Diamine-Oxidase_191.html

2. • Diamine oxidase from porcine
kidney is a homodimer
consisting of 2 equal subunits
with a molecular weight of 87
kDa each. Each subunit
contains one molecule of
pyridoxal phosphate and one
atom of copper. The molecular
mass of the enzyme is found to
be 170 kDa.
Diamine Oxidase

3. • The enzyme is a glycoprotein containing 5% hexose, 3.3% glucosamine, 2.6%
N-acetylglucosamine, and 0.25% N-acetylneuraminic acid. The enzyme exhibits
a high affinity for concanavalin A. It catalyzes the oxidation of monoamines,
diamines, and histamine to aldehydes, ammonia, and hydrogen peroxide.
Optimum pH with cadverine and histamine as substrates is found to be 6.3 -
7.4.2 The enzyme is classified as a copper amine oxidase and it is a key
enzyme in nitrogen metabolism. It is inhibited by diethyldithiocarbamate,
phenylhydrazine, semicarbazide, cyanide, isonicotinic acid hydrazide.
Diamine Oxidase

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Oxidase_191.html

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